Computer System Alert Situation Detection Based on Trend Analysis

1. A computer system configured to detect data alerts, the computer system comprising: a data preprocessing system configured to obtain sequential generated system data of the computer system, sequentially generate predicted data based on the system data, and sequentially generate preprocessed differential data indicating a difference between the system data and the predicted data; and a data analysis system in signal communication with the data preprocessing system, the data analysis system configured to select a first portion of the preprocessed differential data as sample data and to determine that the sample data includes one of an expected event corresponding to the system data generated by the data preprocessing system or an anomaly event corresponding to the system data generated by the data preprocessing system, in response to failing to determine the expected event or the anomaly event, continuously adding at least one new value from a second portion of the preprocessed differential data excluded from the sample data to the sample data until the expected event or the anomaly event is determined, wherein the at least one new value is a next sequential value included the second portion of the preprocessed differential data that is excluded from the sample data.

2. The computer system of claim 1 , wherein in response to determining the sample data includes the anomaly event, the data analysis system determines a reason for the anomaly event based on the at least one new value.

3. The computer system of claim 2 , further comprising a graphic user interface in signal communication with the data analysis system, the graphic user interface configured to display anomaly data indicating the anomaly event and the reason for the anomaly event.

4. The computer system of claim 3 , wherein the data analysis system determines the expected event or the anomaly event based on a decision tree that compares the sample data and the predicted data.

5. The computer system of claim 4 , wherein the decision tree has as a hierarchy of progressing levels, each level including a plurality of nodes, wherein an output of a first node at one level is delivered to a second node at a next level via a branch, and wherein each branch is assigned a truth scenario.

6. The computer system of claim 5 , wherein the truth scenario of each branch leads to a next completed decision indicated by the decision tree.

7. The computer system of claim 6 , wherein the decision tree continues branching through the nodes until determining the expected event or the anomaly event.

8. The computer system of claim 1 , wherein the at least one new value from the second portion of the preprocessed differential data excluded from the sample data is added to the sample data without changing values of the sample data to generate updated sample data, and wherein the expected event or the anomaly event is determined based on the updated sample data now including the unchanged values of the sample data and the at least one new value.

9. A computer implemented method executed by a computer system for identifying relationships among a group of indicators, the computer system comprises: a memory having computer readable instructions; a processor for executing the computer readable instructions, the computer readable instructions including instructions for: obtaining sequential generated system data of a computer system; sequentially generating predicted data based on the system data; sequentially generating preprocessed differential data indicating a difference between the system data and the predicted data; and selecting a first portion of the preprocessed differential data as sample data and determining the sample data includes one of an expected event corresponding to the system data generated by the data preprocessing system or an anomaly event corresponding to the system data generated by the data preprocessing system; and in response to failing to determine the expected event or the anomaly event, continuously adding at least one new value from a second portion of the preprocessed differential data excluded from the sample data to the sample data until the expected event or the anomaly event is determined, wherein the at least one new value is a next sequential value included the second portion of the preprocessed differential data that is excluded from the sample data.

10. The method of claim 9 , further comprising determining a reason for the anomaly event based on the at least one new value in response to determining the sample data includes the anomaly event.

11. The method of claim 10 , further comprising displaying, via a graphic user interface, anomaly data indicating the anomaly event and the reason for the anomaly event.

12. The method of claim 11 , further comprising determining the expected event or the anomaly event by comparing, via a decision tree, the sample data and the predicted data.

13. The method of claim 12 , wherein the decision tree has as a hierarchy of progressing levels, each level including a plurality of nodes, wherein an output of a first node at one level is delivered to a second node at a next level via a branch, and wherein each branch is assigned a truth scenario.

14. The method of claim 13 , wherein the truth scenario of each branch leads to a next completed decision indicated by the decision tree.

15. The method of claim 14 , further comprising continuously branching through the nodes until determining the expected event or the anomaly event.

16. A computer program product comprising a computer readable storage medium having program instructions embodied therewith the program instructions executable by a computer processor to cause the computer processor to perform a method, comprising: obtaining sequential generated system data of a computer system; sequentially generating predicted data based on the system data; sequentially generating preprocessed differential data indicating a difference between the system data and the predicted data; and selecting a first portion of the preprocessed differential data as sample data and determining the sample data includes one of an expected event corresponding to the system data generated by the data preprocessing system or an anomaly event corresponding to the system data generated by the data preprocessing system; and in response to failing to determine the expected event or the anomaly event, continuously adding at least one new value from a second portion of the preprocessed differential data excluded from the sample data to the sample data until the expected event or the anomaly event is determined, wherein the at least one new value is a next sequential value included the second portion of the preprocessed differential data that is excluded from the sample data.

17. The computer program product of claim 16 , wherein the method further comprises determining a reason for the anomaly event based on the at least one new value in response to determining the sample data includes the anomaly event.

18. The computer program product of claim 17 , wherein the method further comprises: displaying, via a graphic user interface, anomaly data indicating the anomaly event and the reason for the anomaly event.